package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    @ApiOperation("新增菜品")
    @Transactional
    public Result save(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        // 清除缓存
        String key = "dish_" + dishDTO.getCategoryId();
//        redisTemplate.delete(key);
        clearCache(key);
        return Result.success();
    }

    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO) {
        log.info("菜品分页查询: {}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 批量删除
     *
     * @return
     */
    @DeleteMapping
    @ApiOperation("菜品批量删除")
    public Result delete(@RequestParam List<Long> ids) {
        log.info("批量删除菜品");
        dishService.deleteBatch(ids);
        // 将所有的菜品缓存数据删除掉，将所有dish_*
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id获取菜品信息
     * @param id
     * @return
     */
     @GetMapping("/{id}")
     @ApiOperation("根据id获取菜品信息")
    public Result<DishVO> getById(@PathVariable Long id) {
         log.info("根据id获取菜品信息： {}",id);
         DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品")
    public Result update(@RequestBody DishDTO dishDTO) {
         log.info("修改菜品: {}",dishDTO);
         dishService.updateWithFlavor(dishDTO);

        // 将所有的菜品缓存数据删除掉，将所有dish_*
//        Set keys = redisTemplate.keys("dish_*");
//        redisTemplate.delete(keys);
        clearCache("dish_*");
         return Result.success();
    }

    /**
     * 根据id获取套餐信息
     * @param categoryId
     * @return
     */
    @ApiOperation("根据id获取套餐信息")
    @GetMapping("/list")
    public Result<List<Dish>> list(Long categoryId) {
        log.info("根据id获取套餐信息: {}",categoryId);
        List<Dish> list =  dishService.list(categoryId);
        return Result.success(list);
    }

    /**
     * 菜品的状态
     * @param status
     * @return
     */
    @PostMapping("/status/{status}")
    @ApiOperation("设置菜品的状态")
    public Result setStatus(@PathVariable Integer status, Long id) {
        log.info("设置菜品的状态为:{}",status == 1?"上架中":"下架中");
        dishService.setStatus(status,id);
        clearCache("dish_*");
        return Result.success();
    }

    private void clearCache(String pattern){
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
